Paraskevidekatriaphobia is the fear of Friday the 13th. The word "paraskevidekatriaphobia" was coined by Dr. Donald Dossey, who told his patients that "when you learn to pronounce it, youre cured!". This phobia is an extension of triskaidekaphobia, which is the fear of the number 13. The origin of the name "paraskevidekatriaphobia" comes from the Greek word "Pareskevi," which means Friday, and "phobos," which means fear. People with this phobia often display signs of extreme anxiety or nervousness as the date approaches, and they may believe that something terrible or evil is going to happen. Symptoms of paraskevidekatriaphobia can include increased heart rate, rapid breathing, faintness, or panic attacks. If the phobia is severely debilitating or affecting ones career or personal growth, seeking professional help is recommended.